Finding the Fourth Proportional to 2,443.21, 3,370.84 and 1,559.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.21 : 3,370.84 = 1,559.30 : x
2. Step 2: Convert to fraction form
   2,443.21/3,370.84 = 1,559.30/x
3. Step 3: Cross multiply
   2,443.21x = 3,370.84 × 1,559.30
4. Step 4: Simplify right side
   2,443.21x = 5,256,153.41
5. Step 5: Solve for x
   x = 5,256,153.41/2,443.21
6. Step 6: Final answer
   x = 2,151.33